Missouri State House District 66
Tue, Nov 3 · Represented by Marlene Terry Democratic · Member list as of Oct 28
Laura Mitchell-RileyRepublicanMarlene TerryDemocratic · Incumbent6 years since first win
No published poll names both candidates.Last result · 2024 general: Marlene Terry (D) 100.0
- Last election
- Marlene Terry (Democratic) was unopposed, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: Mitchell-RileyRight column: Terry
- Donor-based spectrum
- LiberalCentristConservativeTerryNo published score for Mitchell-Riley
- Races
- None listed
- Won 3 of 5
- Years since first win
- Not available
- 6
How these are counted
The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Marlene TerryIncumbentDemocratic
- Laura Mitchell-RileyRepublican
Source: sos.mo.gov (PDF), dated Aug 25
All State House districts
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- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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History (29 elections for this seat)
- Votes for listed candidates
- 9,747
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Missouri House of Representatives District 66, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticMarlene TerryWon Democratic 9,747100.0% - Votes for listed candidates
- 6,033
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Missouri House of Representatives District 66, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticMarlene TerryWon(incumbent) Democratic 6,033100.0% - Votes for listed candidates
- 11,655
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Missouri House of Representatives District 66, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticMarlene TerryWon Democratic 11,655100.0% - Votes for listed candidates
- 10,376
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Missouri House of Representatives District 66, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticTommie Pierson Jr.Won(incumbent) Democratic 10,374100.0% Theo Brown Sr. Write-in 20.0% Scattered write-ins Write-in 00.0% - Votes for listed candidates
- 13,385
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Missouri House of Representatives District 66, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticTommie Pierson Jr.Won(incumbent) Democratic 11,88288.8% RepublicanJohn A. Saxton Republican 1,50311.2% - Votes for listed candidates
- 7,345
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Missouri House of Representatives District 66, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share DemocraticTommie PiersonWon(incumbent) Democratic 6,32286.1% RepublicanJohn Saxton Republican 1,02313.9% - Votes for listed candidates
- 15,645
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Missouri House of Representatives District 66, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticTommie PiersonWon(incumbent) Democratic 14,42792.2% LibertarianJulie Stone Libertarian 1,2187.8% - Votes for listed candidates
- 9,503
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Missouri House of Representatives District 66, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share DemocraticGenise MontecilloWon Democratic 5,68759.8% RepublicanBill Hartzog Republican 3,81640.2% - Votes for listed candidates
- 14,612
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Missouri House of Representatives District 66, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticMichael VogtWon(incumbent) Democratic 10,00668.5% RepublicanJerry Morgan Republican 4,60631.5% - Votes for listed candidates
- 9,502
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Missouri House of Representatives District 66, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticMichael VogtWon(incumbent) Democratic 9,502100.0% - Votes for listed candidates
- 14,649
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Missouri House of Representatives District 66, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticMichael VogtWon(incumbent) Democratic 9,95968.0% RepublicanRobert A. Weiter Republican 4,69032.0% - Votes for listed candidates
- 10,803
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Missouri House of Representatives District 66, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticMichael VogtWon Democratic 6,42659.5% RepublicanCharles McCloskey Republican 4,37740.5% - Votes for listed candidates
- 8,814
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Missouri House of Representatives District 66, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticHarry KennedyWon(incumbent) Democratic 7,70587.4% GreenPatricia A. Turek Green 1,10912.6% - Votes for listed candidates
- 7,176
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Missouri House of Representatives District 66, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share DemocraticHarry KennedyWon(incumbent) Democratic 7,176100.0% - Votes for listed candidates
- 12,017
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Missouri House of Representatives District 66, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticHarry KennedyWon Democratic 8,63071.8% RepublicanKen Jones Republican 3,38728.2% - Votes for listed candidates
- 10,203
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Missouri House of Representatives District 66, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon(incumbent) Democratic 7,13469.9% RepublicanMichael R. Niehaus Republican 2,59325.4% LibertarianMichael P. McBride Libertarian 4764.7% - Votes for listed candidates
- 12,013
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Missouri House of Representatives District 66, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon(incumbent) Democratic 12,013100.0% - Votes for listed candidates
- 6,076
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Missouri House of Representatives District 66, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon(incumbent) Democratic 6,076100.0% - Votes for listed candidates
- 12,856
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Missouri House of Representatives District 66, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon(incumbent) Democratic 8,56366.6% RepublicanDennis Lang Republican 4,29333.4% - Votes for listed candidates
- 7,502
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Missouri House of Representatives District 66, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon(incumbent) Democratic 7,502100.0% - Votes for listed candidates
- 14,225
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Missouri House of Representatives District 66, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share DemocraticMatt OneillWon Democratic 7,40152.0% RepublicanHerb Morisse Republican 6,82448.0% - Votes for listed candidates
- 7,850
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Missouri House of Representatives District 66, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share DemocraticWilliam OtooleWon(incumbent) Democratic 7,850100.0% - Votes for listed candidates
- 7,958
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Missouri House of Representatives District 66, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share DemocraticJohnnie AikensWon(incumbent) Democratic 7,958100.0% - Votes for listed candidates
- 5,944
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Missouri House of Representatives District 66, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share DemocraticJohnnie AikensWon(incumbent) Democratic 5,64294.9% RepublicanWalter Jacobs Republican 3025.1% - Votes for listed candidates
- 7,626
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Missouri House of Representatives District 66, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share DemocraticJohnnie AikensWon(incumbent) Democratic 7,626100.0% - Votes for listed candidates
- 5,769
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Missouri House of Representatives District 66, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share DemocraticJohnnie AikensWon(incumbent) Democratic 5,42394.0% RepublicanH. Billy Quinn Republican 3466.0% - Votes for listed candidates
- 8,597
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Missouri House of Representatives District 66, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share DemocraticJohnnie AikensWon(incumbent) Democratic 8,597100.0% - Votes for listed candidates
- 2,634
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
Missouri House of Representatives District 66, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticEarl W. HornWon(incumbent) Democratic 2,07578.8% RepublicanLee Sutterfield Republican 55921.2% - Votes for listed candidates
- 4,281
- Election day
- November 5, 1968
- District map
- Older district map (1966 to 1971)
Missouri House of Representatives District 66, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share DemocraticEarl W. HornWon(incumbent) Democratic 3,40779.6% RepublicanRobert C. Walters Republican 87420.4%
- 2024: MEDSL 2024 official precinct returns (individual_states zips), retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source
- 1968 to 2022: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), retrieved Oct 28, 2026. Compiled by Carl Klarner (Harvard Dataverse) from official returns; not an official source
Last contest in this district on file: 2024.
Download and cite
Cite this page
Election Wrld. (2026). Missouri State House District 66, election results 1968 to 2024. https://www.electionwrld.com/mo/house/66. Retrieved October 31, 2026.
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Sources
Sources: Census TIGERweb Legislative MapServer (120th CDs layer 0, 119th CDs layer 4, 2026 SLD upper layer 1 and lower layer 2) (US Census Bureau, public domain), retrieved Oct 28, 2026; Open Civic Data division identifiers (census_autogenerated us_sldl/us_sldu and openstates state files); also (sld-recent.json): Open Civic Data division identifiers (country-us) (CC0 (repository); also (sld-recent.json): CC0 1.0), retrieved Oct 28, 2026; Open States people (current) CSVs (CC0-1.0 (Open States people data)), retrieved Oct 28, 2026, compiled by Open States volunteers and staff (rosters from state legislature sites) from official returns, not an official source; MEDSL 2024 official precinct returns (individual_states zips) (Not stated in the GitHub repository (an earlier label said "MIT (repo)", which the repository does not support). MEDSL's Harvard Dataverse records are CC0 1.0, but these GitHub files were not checksum-matched to the Dataverse files, so CC0 is not claimed for them.), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse) (CC0 1.0), retrieved Oct 28, 2026, compiled by Carl Klarner (Harvard Dataverse) from official returns, not an official source.
District id: ocd-division/country:us/state:mo/sldl:66
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY), MEDSL 2024 official precinct returnsData as of Oct 28, 2026